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7 Troubleshooting and Maintenance
7-2
CJ-series PROFINET IO Controller Unit Operation Manual for NJ-series CPU Unit (W511)
7-1
Troubleshooting with the PROFINET
IO Controller Unit Indicators
This section presents a number of easy to use procedures to troubleshoot possible errors using the
indicators on the front of the Unit.
The indicators on the PROFINET IO Controller Unit have the following functions:
The indicators can be used to determine the following categories of errors:
•
Normal operation
This is the normal startup procedure and operation of the PROFINET IO Controller. Any other indi-
cation means the Unit is an abnormal state.
•
Start-up errors
These include errors in the CPU, as well as errors in the Unit, which prevents the combination from
starting up correctly.
•
Operational errors
These include CPU errors, CPU Bus errors, and error log problems during operation.
•
Configuration problems
These include errors during or after downloading a new configuration as well as errors in the config-
uration after startup.
•
PROFINET IO errors
These include errors in the PROFINET IO interface or on the network.
The following table shows the status of the MS, NS, COMM and 100M indicators and the 7-segment
display during normal operation.
7-1-1
Determining Operating Status from the Indicators
Indicator
Indicating
MS
PROFINET IO Controller’s Module Status
NS
PROFINET IO Controller’s Network Status
COMM
PROFINET IO Controller’s Communication Status
100
PROFINET IO Controller’s I/O Data Exchange Status
Содержание CJ1W-PNT21
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